Boeing 777-9 Makes Its First Flight From Everett

AerospacePosted 10/23/202610/23/2026 at 3:19 am@BuildDesk

Starts 01/25/2020 6:09PM UTC

Boeing 40-33, Airport Road, Everett, Snohomish County, Washington, 98204, United States

Aircraft rubric2026 criteria

Estimate from the variant's published specs, 0-5; scores are only comparable within one criteria year. 777-9 (GE9X, MTOW 775,000 lb, 426 typical two-class seats). Range 7,285 nmi (13,500 km) = 4.5 (interpolated 6,500 = 4, 8,000 = 5). Capacity 426 typical two-class seats = 5.0. Speed null: the 777-9's typical cruise Mach was not stated in any page opened (the first-flight pages give only test-flight speeds). Efficiency null: Boeing's percentage claims are not a published fuel burn. Runway null: no airport-planning document for the 777-9 read. Only Mach .84 seen is a first-flight test point. Comfort null: reviews so far are pilot reports of the test aircraft, none of the cabin.

Alternate names

777-9
English
Boeing 777X
Alias
Maiden Flight
Alias

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References 480% CONFIDENCEOverall confidence: 80%How well the pin's source and references back up its dates.Weighted average of how firmly 4 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

[1]90%
boeing.mediaroom.com/2020-01-25-New-Boeing-777X-Completes-Successful-First-Flight
boeing.mediaroom.com· Posted Oct 23, 2026· Starts Jan 25, 2020 ✓· Ends Jan 25, 2020 ✓· 50% of score
Boeing: 'The new Boeing 777X jetliner took to the skies today... at Paine Field in Everett, Washington, at 10:09 a.m. local time for a three hour, 51 minute flight', release dated Jan. 25, 2020 (10:09 PST = 18:09 UTC).
[2]70%
Boeing 777X - Wikipedia
en.wikipedia.org· Added Oct 23, 2026· 50% of score
Wikipedia 777X article: first flight on January 25, 2020 from Everett to Boeing Field; MTOW.
[3]75%
Boeing's huge 777-9X airplane takes its first flight - Military & Aerospace Electronics
militaryaerospace.com· Published Jan 27, 2020· Starts Jan 25, 2020· 0% of score
Military & Aerospace Electronics, 27 Jan 2020: WH-001 took off from Paine Field on Saturday after days of abysmal weather.^[1]
[4]75%
Boeing Unveils 777-9 In Low-Key Event - Aviation Week
aviationweek.com· Published Mar 14, 2019· 0% of score
Aviation Week: Boeing quietly debuted the 777-9 to employees in Everett on 13 March 2019.

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Boeing 777-9 Makes Its First Flight From Everett

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